#VU82556 OS Command Injection in Ingress-NGINX Controller for Kubernetes - CVE-2023-5043
Published: October 30, 2023 / Updated: January 15, 2024
Vulnerability identifier: #VU82556
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2023-5043
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Ingress-NGINX Controller for Kubernetes
Ingress-NGINX Controller for Kubernetes
Software vendor:
Kubernetes
Kubernetes
Description
The vulnerability allows a remote user to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the nginx.ingress.kubernetes.io/configuration-snippet annotation. A remote user can pass specially crafted data to the application, execute arbitrary OS commands and obtain the credentials of the ingress-nginx controller.
Remediation
Install updates from vendor's website.